889616988 has 36 divisors (see below), whose sum is σ = 2421736408. Its totient is φ = 273728160.

The previous prime is 889616983. The next prime is 889617049.

889616988 is a `hidden beast` number, since 8 + 8 + 9 + 616 + 9 + 8 + 8 = 666.

889616988 is nontrivially palindromic in base 10.

889616988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889616983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 949978 + ... + 950913.

Almost surely, 2^889616988 is an apocalyptic number.

It is an amenable number.

889616988 is an abundant number, since it is smaller than the sum of its proper divisors (1532119420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

889616988 is a wasteful number, since it uses less digits than its factorization.

889616988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1900914 (or 1900909 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 63.

The square root of 889616988 is about 29826.4477938624. The cubic root of 889616988 is about 961.7621670493.

The spelling of 889616988 in words is "eight hundred eighty-nine million, six hundred sixteen thousand, nine hundred eighty-eight".